Construction project management in Collonge-Bellerive
Planning building work? Apartment, house or building renovation, a new storey or a roof extension, running the project is our job.
Collonge-Bellerive has 1,835 single-family houses out of 2,200 residential buildings. HMG Construction Management SA manages villa renovations, extensions and new builds there. It can file the permit application itself as an agent registered on the Geneva MPQ list (mandataires professionnellement qualifiés, the cantonal register of qualified building professionals), then compares bids and controls the schedule and costs.
What work does a villa in Collonge-Bellerive need?
The single-family house clearly dominates in Collonge-Bellerive. The OCSTAT table T 09.02.1.2.01 lists 2,200 residential buildings at the end of 2025, of which 1,835 hold a single dwelling, more than eight in ten. The municipal profile gives 8,672 residents on 612 hectares and a density of 1,416 inhabitants per km².
Recent buildings outnumber old ones. There are 598 from after 2000, more than a quarter of the total, against 317 from before 1946. Many projects therefore concern sound houses that owners want to adapt, with an open kitchen, new bathrooms, an extra storey or an extension. Houses from the periods in between tend to need work on the envelope and the services. The Collonge-Bellerive municipal website covers municipal matters.
Procedures in Geneva
The construction rules, including those of the fifth zone (the villa zone), are in the LCI, the cantonal building act. According to the cantonal page on permit types, construction in the fifth zone without derogation, a villa for instance, falls under the fast-track procedure (APA), as does an interior change. Anything outside that scope needs a full application (DD). Our guide to building permits in Geneva helps you place yours.
Types of work in Collonge-Bellerive
- Villa renovation, the core of demand with 1,835 single-family houses.
- House extension, to adapt a recent house to new needs.
- Adding a storey, when the plot leaves no room at ground level.
- Kitchen renovation, often combined with a new ground-floor layout.
- Bathroom renovation, best grouped with the other plumbing work.
- Villa construction, for a new house.
How HMG manages your project in Collonge-Bellerive
A villa owner has a choice. They can ask HMG to run the whole project, with plans, permit, tenders and site. They can also have the house designed by their architect, who obtains the permit, and then entrust construction to HMG, which then works closely with the architect.
On a villa, the work packages are many and follow each other closely, from the structure to the landscaping. HMG sets their sequence in a detailed schedule and makes sure every contractor has up-to-date drawings. The owner receives financial reporting that separates the initial budget, the changes they have asked for and the forecast final cost.
Municipalities in the same sector
The municipalities below are in the same sector as Collonge-Bellerive and each has its own page.
HMG projects in the canton of Geneva
Frequently asked questions
Why is this page mostly about villas in Collonge-Bellerive?
Because 1,835 of the 2,200 residential buildings are single-family houses, according to OCSTAT. The other 365 buildings hold several dwellings, and HMG's project management covers those as well.
Does a house built after 2000 need renovating?
It rarely needs heavy work, but its owners often want to rethink the kitchen, the bathrooms or the layout. In Collonge-Bellerive, 598 residential buildings date from after 2000.
How long does it take to obtain a permit?
It depends on the procedure and on the file, and no time frame can be promised. HMG prepares a complete file from the outset and answers the administration's requests to avoid back and forth.
Related guides and pages
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